<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <div id="myChart" style="width: 600px;height:400px;"></div>
  </div>
</template>>

 <script>
  import echarts from 'echarts'
  import _ from 'lodash'
  export default {
    data() {
      return {
        // 需要合并的数据
        options: {
                title: {
                  text: '用户来源'
                },
                tooltip: {
                  trigger: 'axis',
                  axisPointer: {
                    type: 'cross',
                    label: {
                      backgroundColor: '#E9EEF3'
                    }
                  }
                },
                grid: {
                  left: '3%',
                  right: '4%',
                  bottom: '3%',
                  containLabel: true
                },
                xAxis: [
                  {
                    boundaryGap: false
                  }
                ],
                yAxis: [
                  {
                    type: 'value'
                  }
                ]
              }
      }

    },

    async mounted() {
      var  myChart = this.$echarts.init(document.getElementById('myChart'))
      const {data:res} = await this.$http.get('reports/type/1')
      if(res.meta.status!==200){
          return  this.$message.error('获取折线图数据失败!')
      }
      const result = _.merge(res.data,this.options)
      myChart.setOption(result)


      // myChart.setOption(this.option)
      myChart.setOption(res.data)
    }
  }
</script>

<style lang="less" scoped>
  #main {
    margin-top: 30px;

  }

  #myChart {
    width: 95%;
    height: 300px;
    margin: 20px auto;
    border: 1px solid #CCC
  }
</style>
